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Proceedings of the fifth mountain lion workshop: 27

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66 PROCEEDINGS OF THE FIFTH MOUNTAIN LION WORKSHOP<br />

3<br />

2<br />

1<br />

0<br />

-1<br />

-2<br />

-4<br />

-3<br />

-2<br />

-1<br />

Lion subspecies<br />

F.c. azteca<br />

F.c. browni<br />

F.c. californica<br />

F.c. kaibabensis<br />

0 1 2 3 4<br />

Figure 1. Canonical variate analysis <strong>of</strong> 5 tooth characteristics for P.c. azteca, P.c. browni, P.c. californica, P.c. kaibabensis<br />

illustrating a lack <strong>of</strong> separation between <strong>the</strong>se subspecies based on dentition.<br />

that a subspecies carries (ecologically relevant) adaptations<br />

couples with <strong>the</strong> potential to become a unique new species<br />

are compelling reasons for affording <strong>the</strong>m protection<br />

against extinction."<br />

Because <strong>the</strong> Endangered Species Act requires <strong>the</strong><br />

conservation <strong>of</strong> subspecies, we recognize <strong>the</strong> constraints<br />

that <strong>the</strong> law imposes on wildlife and land managers.<br />

However, among widely dispersing mammals which do not<br />

appear to be separated by geographic barriers <strong>the</strong> subspecies<br />

category may be ei<strong>the</strong>r too ambiguous or simply<br />

inappropriate as a management designation. From a<br />

standpoint <strong>of</strong> conservation biology, using <strong>the</strong> <strong>mountain</strong> <strong>lion</strong><br />

as an umbrella species with consideration for habitat<br />

continuity and connectivity may be a more useful<br />

management strategy.<br />

The question <strong>of</strong> taxonomic status, cast into doubt<br />

by ecological evidence, may only be resolved through <strong>the</strong><br />

examination <strong>of</strong> a larger morphometric data set, and through<br />

<strong>the</strong> application <strong>of</strong> modern genetic and statistical techniques.<br />

It is unlikely that any single ecological, morphological, or<br />

genetics-based approach will or should answer <strong>the</strong> question<br />

<strong>of</strong> subspecific status.<br />

ACKNOWLEDGMENTS<br />

The Department <strong>of</strong> Defense (DOD) Legacy<br />

Resource Management Program administered by Southwest<br />

Division Naval Facilities Engineering Command<br />

(SDNFEC), Natural Resources Branch, generously provided<br />

funding. We are grateful to W. Fisher for his interest, help,<br />

and advice. Many individuals gave generously <strong>of</strong> <strong>the</strong>ir time<br />

and information, particularly L. Thompson-Olais, M. Peirce,<br />

B. Broyles, L. Haynes, L. Lesika, R. Lidicker, D. Schlitter,<br />

and H. Shaw. Thanks to D. Hewitt for his exsanguinated<br />

comments.<br />

LITERATURE CITED<br />

Ackerman, B. B. 1982. Cougar predation and ecological<br />

energetics in sou<strong>the</strong>rn Utah. M.S. <strong>the</strong>sis. Utah<br />

State Univ., Logan. 103pp.

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